The ebay ad was pulled sometime in the last 24 hours; the sub is still for sale here for $1000:
http://www.canuckaudiomart.com/details/214632-axiom_ep600_v2_sub_mint/If you are considering buying it I would ask if it's been repaired.
I bought an Axiom 5.1 set up from him a year or so ago (M80's, QS8's, VP150 and a EP350 sub), went to his house and auditioned them - he was quite friendly. At the time he had an Axiom sub he was sending back for repair - I can't say for sure it was this one but it came to mind when I saw the ad.
